[PATCH v3 1/8] oleacc: Reorganize class specific behaviour handling.

[Piotr Caban]

Hi Connor,

The window class needs special handling for some windows classes as 
well. An example of that is a ListBox that is created by ComboBox. The 
ListBox HWND parent is desktop but get_accParent should return ComboBox 
accessibility object.

I'm expecting the same to apply for context menus but I was unable to 
confirm that with quick testing.

Thanks,
Piotr